反应条件
in neat (no solvent) byproducts: KBr, N2; warming up to 145°C during 3 h with stirring, keeping for 18 h at this temp.; hot filtration, sepn. of KBr by distn., extg. the residue twice with benzene under reflux, vacuum distn., vacuum sublimation yields products in 11:5:1 ratio for trimer, tetramer and pentamer, identification by thin layer chromy. and (31)P-NMR;
参考文献
Seger, Jiri; Kouril, Milan; Alberti, Milan; Pronayova, Nad'a
Zeitschrift fuer Chemie (Stuttgart, Germany), 1990 , vol. 30, p. 215 - 216